// body{
//     display: flex;
// }
.sift{
    padding: 10px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    width: 300px;
    border: 1px solid #abc;
    left: 0;
    right:  0;
    margin: 0 auto;
    .title{
        text-align: center;
        font-size: 25px;
        font-weight: bolder;
        padding: 5px 0;
    }
    .chick{
        div{
            font-size: 20px;
            padding-top: 20px;
            padding-bottom: 5px;
        }
        span{
            cursor:pointer
           
        }
        .on{
            color: red;
        }
    }
    .btn{
        display: flex;
        justify-content: space-between;
        margin: 20px;
        input{
            width: 100px;
        }
    }
}
table{
    width: 500px;
    left: 0;
    right:  0;
    margin: 0 auto;
}
td {
    text-align: center;
    border: 1px solid #000;
    padding: 5px 0;
    // width: 50px;
    // height: 20px;
}